/* Header / navigation styles for Arkanthar */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-brand {
  display: flex;
  align-items: center;
}

.header-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  z-index: 10;
}

.header-logo-mark {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 1.2rem;
  background: conic-gradient(from 180deg, #ffb84d, #ff5c7a, #4fd1a5, #ffb84d);
  box-shadow: 0 0 0 2px rgba(5, 7, 19, 0.9), 0 12px 24px rgba(0, 0, 0, 0.7);
  position: relative;
}

.header-logo-mark::after {
  content: "A";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: #050713;
}

.header-logo-text {
  display: flex;
  flex-direction: column;
}

.header-logo-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-logo-tagline {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

/* Navigation */

.header-nav {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-cta-wrapper {
  margin-left: var(--space-4);
}

.nav-cta {
  font-size: var(--font-size-xs);
}

/* Mobile toggle */

.header-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.25rem;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(5, 7, 19, 0.9);
  cursor: pointer;
  transition: background var(--duration-normal) var(--easing-standard),
    transform var(--duration-fast) var(--easing-standard),
    box-shadow var(--duration-normal) var(--easing-standard);
}

.header-toggle-bar {
  width: 1.3rem;
  height: 2px;
  border-radius: 999px;
  background: #ffffff;
  transition: transform var(--duration-normal) var(--easing-standard),
    opacity var(--duration-normal) var(--easing-standard),
    width var(--duration-normal) var(--easing-standard);
}

.header-toggle:focus-visible {
  box-shadow: var(--shadow-outline);
}

/* Open state */

.header-toggle.is-open {
  background: rgba(10, 14, 32, 0.98);
  box-shadow: var(--shadow-soft);
}

.header-toggle.is-open .header-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.header-toggle.is-open .header-toggle-bar:nth-child(2) {
  opacity: 0;
  width: 0.8rem;
}

.header-toggle.is-open .header-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Overlay for mobile nav */

.header-nav-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at top, rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.9));
  backdrop-filter: blur(16px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--easing-standard),
    visibility var(--duration-normal) var(--easing-standard);
}

.header-nav-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

/* Responsive behavior */

@media (max-width: 900px) {
  .header-toggle {
    display: inline-flex;
    z-index: 10;
  }

  .header-nav {
    position: fixed;
    inset: 0 0 auto 0;
    top: 0;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--duration-slow) var(--easing-standard),
      opacity var(--duration-slow) var(--easing-standard),
      visibility var(--duration-slow) var(--easing-standard);
    background: linear-gradient(to bottom, rgba(5, 7, 19, 0.98), rgba(5, 7, 19, 0.96));
    padding-top: calc(var(--space-16));
    padding-bottom: var(--space-10);
  }

  .header-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    display: flex;
    justify-content: center;
  }

  .nav-links {
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: var(--space-3);
  }

  .nav-cta-wrapper {
    margin-left: 0;
    margin-top: var(--space-4);
  }

  .nav-link {
    font-size: var(--font-size-sm);
  }
}

@media (max-width: 480px) {
  .header-logo-tagline {
    display: none;
  }
}

/* Ensure nav is visible when JS is disabled */

.no-js .header-nav {
  position: static;
  transform: none;
  opacity: 1;
  visibility: visible;
}

.no-js .header-toggle,
.no-js .header-nav-overlay {
  display: none !important;
}